Abstract: This paper is concerned about a systematic study of insect community Trifolium repens.L.lawn in spring, the result show that the insect community composed of twenty-eight kinds of insects of nine orders. In which Aphid and leafmite are the dominant insects in spring. Through the analysis of four indexes of N、S、T、H，the insect community of Trifolium repens L. lawn is more prosperous in April than other moons ,but insect community structure is more steady in May than other moons. It is important to the pests management of the Trifolum repens.L.lawn.